Sempio Defense Contends Cellar Print 33 Was Misinterpreted as Blood

Consultants led by Luciano Garofano assert that sweat-reactive ninhydrin produced the mark, leading to misidentified minutiae.

Overview

On July 7, Andrea Sempio’s defense filed an expert report arguing that the disputed latent print was formed by sweat, not blood.
Defense consultants Luciano Garofano and Luigi Bisogno maintain that ninhydrin reacts exclusively with sweat amino acids and can erase any blood residue.
They contend prosecutors combined three separate contact traces into one composite print and mistakenly counted wall marks as 15 matching minutiae.
Alberto Stasi’s legal team has yet to submit its expert analysis on print 33, and the Poggi family’s consultants have also rejected the prosecution’s attribution.
The court will weigh these competing forensic reports to determine Sempio’s status as sole suspect and potentially revisit Stasi’s 2007 conviction.